Fans of Good Morning America have been wondering where Robin Roberts was this week when she wasn't seen on TV sitting alongside other hosts.

It seems that the morning show host has not been feeling too well and has been admitted to the hospital for a few days.

Roberts has provided an update on her Facebook page regarding her status:

It saddens me that I haven't been able to join my colleagues in covering this important story.

Last week, in the middle of my Key West vacation, I began not to feel well. Nothing serious, just under the weather. I contacted my doctors and flew back to NYC. They felt it best to admit me into the hospital for a few days. Seems my young immune system needed a little boost to fight off "opportunistic infections".

My doctors assured me that this was NOT because I was working or doing too much, too soon. It's extremely common, post bone marrow transplant, to have complications. I'm blessed that mine have not been severe.

I'm feeling MUCH better, and will relax at home for the rest of the week. I'll be back on GMA next week...as my sweet momma would say: "Good Lord willing and the creek don't rise!"

Miss you and bless you..XO

Meanwhile, speculation continues to stir about Roberts and her rumored partner Storm Sahara.  The pair has been rumored to be planning a wedding.

Roberts went on sick leave for five months from Good Morning America to undergo treatment for MDS, a rare blood disorder, and during that time she was apart from her Sahara, according to National Enquirer. A source revealed that Roberts made plans to reconcile with Sahara after her treatment and "vowed" to propose to her.

Roberts returned to GMA on February after undergoing a bone marrow transplant - with her older sister Sally-Ann Roberts as a donor.

"I have been waiting 174 days to say this 'Good Morning America!'" she had said.

Robin said sitting back at the desk with her GMA co-anchors George Stephanopoulos, Josh Elliott, Lara Spencer and Sam Champion was surreal.

"I keep pinching myself and I realize that this is real. This is really happening," she said. "Faith, family and friends have brought me to this moment and I am so full of gratitude."

Robin thanked her medical staff, family and fans for their endearing support during her battle for the rare blood disorder she was diagnosed with five years after she successfully beat breast cancer.